show "no posts found" with bluesky profile link when a handle
has no results. fix handle in footer and add source repo link.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

swap public.api.bsky.app → typeahead.waow.tech

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

SvelteKit + Svelte 5 static SPA. enter a handle, see their top posts
ranked by engagement, rendered as bluesky embeds.

- handle typeahead via public bsky API
- progressive rendering (results appear while still scanning)
- localStorage cache (15min TTL)
- embed opt-out detection
- dark theme, amber accents, golden ratio typography

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>